Remote sensing for mineral exploration in central Portugal

Detalhes bibliográficos
Autor(a) principal: Manuel, Ricardo
Data de Publicação: 2017
Outros Autores: Brito, Maria da Graça, Chichorro, Martim, Rosa, Carlos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Texto Completo: https://doi.org/10.3390/min7100184
Resumo: GeoBiotec (UID/GEO/04035/2013/FCT)
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spelling Remote sensing for mineral exploration in central PortugalDigital image processingGoldLineamentsMineral explorationPortugalRemote sensingTinTungstenGeotechnical Engineering and Engineering GeologyGeologyGeoBiotec (UID/GEO/04035/2013/FCT)Central Portugal is well known for the existence of Sn-W and Au-Ag mineral occurrences primarily associated with hydrothermal processes. Despite the economic and strategic importance of such occurrences, the detailed geology of this particular region is poorly known and there is an obvious absence of geological mapping at an adequate scale. Remote sensing techniques were used in order to increase current geological knowledge of the Góis-Castanheira de Pêra area (600 km2) and to guide future exploration stages by targeting and prioritising potential locations. Digital image processing algorithms, such as Red, Green, Blue (RGB) colour composites, digital spatial filters, band ratios and Principal Components Analysis, were applied to Landsat 8 imagery and elevation data. Lineaments were extracted relying on geological photointerpretation criteria, allowing the identification of new geological-structural elements. Fieldwork was carried out in order to validate the remote sensing interpretations. Integration of remote sensing data with other information sources led to the definition of locations possibly suitable for hosting Sn-W and Au-Ag mineral occurrences. These areas were ranked according to their mineral potential. Targeting the most promising locations resulted in a reduction to less than 10% of the original study area (50.5 km2).GeoBioTec - Geobiociências, Geoengenharias e GeotecnologiasRUNManuel, RicardoBrito, Maria da GraçaChichorro, MartimRosa, Carlos2018-11-29T23:20:07Z2017-10-012017-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.3390/min7100184eng2075-163XPURE: 3366881https://www.scopus.com/record/display.uri?eid=2-s2.0-85031401519&origin=resultslist&sort=plf-f&src=s&st1https://doi.org/10.3390/min7100184info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-22T17:35:50Zoai:run.unl.pt:10362/53228Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T17:06:55.250608Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Remote sensing for mineral exploration in central Portugal
title Remote sensing for mineral exploration in central Portugal
spellingShingle Remote sensing for mineral exploration in central Portugal
Manuel, Ricardo
Digital image processing
Gold
Lineaments
Mineral exploration
Portugal
Remote sensing
Tin
Tungsten
Geotechnical Engineering and Engineering Geology
Geology
title_short Remote sensing for mineral exploration in central Portugal
title_full Remote sensing for mineral exploration in central Portugal
title_fullStr Remote sensing for mineral exploration in central Portugal
title_full_unstemmed Remote sensing for mineral exploration in central Portugal
title_sort Remote sensing for mineral exploration in central Portugal
author Manuel, Ricardo
author_facet Manuel, Ricardo
Brito, Maria da Graça
Chichorro, Martim
Rosa, Carlos
author_role author
author2 Brito, Maria da Graça
Chichorro, Martim
Rosa, Carlos
author2_role author
author
author
dc.contributor.none.fl_str_mv GeoBioTec - Geobiociências, Geoengenharias e Geotecnologias
RUN
dc.contributor.author.fl_str_mv Manuel, Ricardo
Brito, Maria da Graça
Chichorro, Martim
Rosa, Carlos
dc.subject.por.fl_str_mv Digital image processing
Gold
Lineaments
Mineral exploration
Portugal
Remote sensing
Tin
Tungsten
Geotechnical Engineering and Engineering Geology
Geology
topic Digital image processing
Gold
Lineaments
Mineral exploration
Portugal
Remote sensing
Tin
Tungsten
Geotechnical Engineering and Engineering Geology
Geology
description GeoBiotec (UID/GEO/04035/2013/FCT)
publishDate 2017
dc.date.none.fl_str_mv 2017-10-01
2017-10-01T00:00:00Z
2018-11-29T23:20:07Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://doi.org/10.3390/min7100184
url https://doi.org/10.3390/min7100184
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2075-163X
PURE: 3366881
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https://doi.org/10.3390/min7100184
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dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
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reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
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repository.mail.fl_str_mv info@rcaap.pt
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